名词性从句dng.doc

语法专项六：名词性从句 一，名词性从句的种类 What he does is important. This is what he does every day. I don’t like what he does every day. I give the girl a big doll, exactly what she longed to have. 名词性从句在功能上相当于名词。名词在句中主要作主语，宾语，表语和同位语。在英语的句子结构中，本来该由名词充当的主语、宾语、表语和同位语，由一个句子来充当，这个句子就叫：名词性从句。名词性从句分为：主语从句，宾语从句，表语从句和同位语从句。 二，引导名词性从句的连接词 主 语 从 句 宾语从句 表语从句 同位语 从句 动 宾 介宾 that事实类 一 般 不 省 可 省 except/in/but that 不 能 省 不 能 省 whether/if是否类 句首whether 不与or not /discuss/to do连用 只能whether 只能whether 只能whether wh-(how)疑问类 what/ which/who/whom/whose/ when/where/why/ how what关系类 what /whatever/whichever/whoever /when/where 1. that 引导名词性从句 （1）that引导的名词性从句中，that只起连接作用，在从句中不作任何成分，本身也没有含义。that-从句在句中能充当主语、宾语、表语、同位语，例如： That he is still alive is sheer luck.　 John said (that) he was leaving for London on Wednesday.　 I am glad that you are satisfied with your job. The fact is that he has not been seen recently.　　　 The fact that he has not been seen recently disturbs everyone in his office. （2）that引导主语从句时，常用it作形式主语，例如： It is certain that your son will do well in his exam. It is no surprise that our team has won the game. It seems that you know a lot about computer. 句型总结： it be +表语（形容词、过去分词、名词）+that从句 it + 不及物动词+ that从句 其他结构 It occurred to/struck/hit sb that... 某人突然想起... It doesn’t need to be bothered that... 不必担心… It is of little consequence that... … 无关紧要。 2. whether/ if 引导名词性从句 (1) whether/if 引导的名词性从句是由一般疑问句转化而来的，因此也被称为whether/if是否类从句。whether/if起连接作用，在从句中不作任何成分，但保留其原有的“是否”含义。例如： Whether the plan is feasible remains to be proved. Let us know whether / if you can finish the article before Friday.　 She’s doubtful whether we shall be able to come.（形容词宾语） I worry about whether he can pass through the crisis of his illness.（介词宾语）　 Please tell me whether / if they are Swedish or Danish.（直接宾语） The question is whether we should lend him the money.　 They are investigating the question whether the man is trustworthy.　 3. wh-(how) 疑问词引导名词性从句 （1）wh-(how)引导的名词性从句是由特殊疑问句转化而来，因此也被称为wh-(how)疑问类从句。wh-(how)不仅起连接作用，